Raisins can be substituted with chocolate chips, dried cranberries, chopped dates, apricots, dried cherries, or blueberries for different flavors., Use instant yeast for faster preparation; if using active dry yeast, dissolve it in warm milk before mixing., Knead dough thoroughly until soft and springy to ensure fluffy buns., Weigh or carefully portion dough for uniform bun sizes and even baking., Buns can be frozen for up to 2 months, thawed at room temperature and warmed before serving., Make dough ahead and do the first rise overnight in the fridge for fresh buns next day., Add chopped nuts, candied peel, orange zest, or vanilla extract for variation., Serve buns warm with butter, cream cheese, jam, honey, or alongside beverages like coffee, tea, or milkshakes.